BRITISH STANDARD Durability of wood and wood-based products — Efficacy of preventive wood preservatives as determined by biological tests Part 1: Specification according to use class ICS 71.100.50 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS EN 599-1:2009 +A1:2013 BS EN 599-1:2009+A1:2013 National foreword This British Standard is the UK implementation of EN 599-1:2009+A1:2013 It supersedes BS EN 599-1:2009 which is withdrawn The start and finish of text introduced or altered by amendment is indicated in the text by tags Tags indicating changes to CEN text carry the number of the CEN amendment For example, text altered by CEN amendment A1 is indicated by !" The UK participation in its preparation was entrusted to Technical Committee B/515, Wood preservation A list of organizations represented on this committee can be obtained on request to its secretary This publication does not purport to include all the necessary provisions of a contract Users are responsible for its correct application Compliance with a British Standard cannot confer immunity from legal obligations This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2010 © The British Standards Institution 2014 Published by BSI Standards Limited 2014 ISBN 978 580 82821 Amendments/corrigenda issued since publication Date Comments 31 January 2014 Implementation of CEN amendment A1:2013 EUROPEAN STANDARD EN 599-1:2009+A1 NORME EUROPÉENNE EUROPÄISCHE NORM December 2013 ICS 71.100.50 English Version Durability of wood and wood-based products - Efficacy of preventive wood preservatives as determined by biological tests - Part 1: Specification according to use class Durabilité du bois et des matériaux dérivés du bois Efficacité des produits préventifs de préservation du bois établie par des essais biologiques - Partie 1: Spécification par classe d'emploi Dauerhaftigkeit von Holz und Holzprodukten - Wirksamkeit von Holzschutzmitteln wie sie durch biologische Prüfungen ermittelt wird - Teil 1: Spezifikation entsprechend der Gebrauchsklasse This European Standard was approved by CEN on 20 June 2009 and includes Amendment approved by CEN on 21 October 2013 CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member This European Standard exists in three official versions (English, French, German) A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels © 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members Ref No EN 599-1:2009+A1:2013 E BS EN 599-1:2009+A1:2013 EN 599-1:2009+A1:2013 (E) Foreword This document (EN 599-1:2009+A1:2013) has been prepared by Technical Committee CEN/TC 38 “Durability of wood and wood-based products”, the secretariat of which is held by AFNOR This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2014, and conflicting national standards shall be withdrawn at the latest by June 2014 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights This document includes Amendment approved by CEN on 21 October 2013 This document supersedes EN 599-1:2009 The start and finish of text introduced or altered by amendment is indicated in the text by tags Significant technical differences between this edition and EN 599-1:1996 are as follows: — The scope now emphasises that this standard is not a performance standard but a standard for characterising the efficacy of wood preservatives, based on data derived from the biological tests that it specifies, supplemented by, in certain cases, data from field tests This European Standard provides a basis for establishing preservative retentions for timber when specified in conjunction with EN 351-1 taking into account necessary local considerations It points out that at present not all natural ageing factors which may affect the stability of active ingredients for wood preservatives can be assessed by standardized methods but have nevertheless to be taken into account in the development of preservative products capable of being effective in service It also allows for preservatives that have been used successfully and legally before the standard was to have their efficacy confirmed in accordance with the general principles of the standard (so called “grandfather-clause”) — This document now provides for the use of data from CEN/TS 839, in specific cases, as a method for the assessment of preservatives designed for superficial applications — In Annex A “Guidance on re-testing after making variations in product formulation”, requirements have been clarified by the provision of diagrams — Production control has been withdrawn from Clause and transferred to a new informative annex (now Annex B) — A new normative annex on the validity of test results from former standards after their revision has been added (now Annex H) EN 599 consists of two parts Part (EN 599-2, Durability of wood and wood-based products — Performance of preventive wood preservatives as determined by biological tests — Part 2: Classification and labelling) will be revised later once the exact requirements of the Biocidal Products Directive have been finalised According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom BS EN 599-1:2009+A1:2013 EN 599-1:2009+A1:2013 (E) Contents Page Introduction Scope Normative references 3.1 3.2 Terms, definitions, abbreviations and symbols Terms and definitions Abbreviations and symbols Assignment to use class(es) 10 5.1 5.2 Efficacy 11 Principal requirements 11 Additional requirements in Table to Table 11 6.1 6.2 6.3 6.4 6.5 Tests for efficacy according to use class 15 Use class 15 Use class 16 Use class 16 Use class 17 Use class 18 Derivation of critical values 18 Marking 19 9.1 9.2 Product identification 19 Type testing 19 Identity of the preservative product 19 Annex A (informative) Guidance on re-testing after making variations in product formulation 27 A.1 Introduction 27 A.2 No requirements for new biological testing 27 A.3 Requirement for minimum new biological testing 28 A.4 Requirement for full new biological testing 32 Annex B (informative) Production control 33 B.1 Procedure 33 B.2 Records 34 Annex C (informative) Methods of application 35 Annex D (informative) Type of wood 36 Annex E (informative) Artificial ageing procedures 37 Annex F (informative) Significance of specific biological agents 38 Annex G (informative) Minimum efficacy requirements 39 Annex H (normative) Validity of test results from former standards after their revision 40 Bibliography 41 BS EN 599-1:2009+A1:2013 EN 599-1:2009+A1:2013 (E) Introduction This part of EN 599 is one of a series and should be used in conjunction with EN 599-2, EN 335-1 and EN 335-2, which describe the service conditions for treated wood in terms of use classes, and EN 351-1, which describes a classification system for preservative treated wood in terms of preservative penetration and gives guidance on classes for retentions The need for wood preservatives depends in part on the natural durability of the wood and therefore this part of EN 599 should also be used in conjunction with EN 350-1, EN 350-2 and EN 460 BS EN 599-1:2009+A1:2013 EN 599-1:2009+A1:2013 (E) Scope This part of EN 599 specifies for each of the five use classes defined in EN 335-1, the biological tests required for evaluating the efficacy of wood preservatives for the preventive treatment of solid timber, together with the minimum ageing tests required for the respective use class It provides the method for calculating the critical value of a preservative The critical value is the value that shall be used to calculate the recommended retention of the preservative appropriate for specific service conditions The critical value is not necessarily the recommended retention or the minimum retention level for the preservative The wide range of hazards, exposure conditions and service life requirements across Europe make it necessary to allow for local considerations in the calculation of the required preservative retention; EN 351-1 provides for the critical value to be adjusted to take account of these factors This part of EN 599 is applicable to all wood preservative products supplied for application in liquid form for the preventive treatment of timbers (structural and non-structural) against wood-attacking fungi, woodattacking insects and marine borers as described in EN 335-1 However, it is applicable to products for preventive treatments against fungi causing disfigurement (blue stain) of wood in service if this forms part of the overall preventive efficacy of the product This part of EN 599 does not necessarily take into account all the factors which may affect the stability of active ingredients in preservative treated wood These factors include ultra-violet light and microbiological agencies capable of degrading components of the preservative Such factors are an integral part of exposure in field trials but are subject to natural variation and their impact is not directly assessed in the field trial methods included in this standard Methods are in development to assess the impact of these factors but are not finalised and cannot be included in this revision of this part of EN 599 Because such factors could, in service, significantly affect the active ingredient’s suitability for its intended purpose, the manufacturer/ producer is expected to ensure and be able to provide evidence that its stability, at the recommended retention of the preservative product, has been adequately assessed This part of EN 599 is not applicable to wood preservative products supplied for application as pastes, solids or in capsule or gaseous form because these cannot be tested without modification of the biological tests cited in this standard It does not apply either to wood preservative products for remedial (curative) treatments, to those applied to prevent fungi causing sap stain on green (unseasoned) timber or to those applied solely to prevent fungi causing disfigurement (blue stain) of wood in service NOTE The nature of the laboratory and field tests required in this part of EN 599 to demonstrate efficacy of a wood preservative are such that the time required generating the data is many months or years, depending upon the properties of the wood preservative and the use class in which the treated wood is to be exposed For preservative products which have already been placed on the market without significant formulation variation (see Annex A) before the end of 1990 and which can demonstrate a record of having been used lawfully and successfully in accordance with local technical traditions during this period, national standards bodies or independent authorities nominated by them, may declare critical values for use within their territories NOTE 2 For re-testing after making variations in product formulation, guidance is given in Annex A Normative references The following referenced documents are indispensable for the application of this document For dated references, only the edition cited applies For undated references, the latest edition of the referenced document (including any amendments) applies EN 20-1, Wood preservatives - Determination of the protective effectiveness against Lyctus Brunneus (Stephens) - Part 1: Application by surface treatment (laboratory method) BS EN 599-1:2009+A1:2013 EN 599-1:2009+A1:2013 (E) EN 20-2, Wood preservatives - Determination of the protective effectiveness against Lyctus brunneus (Stephens) - Part 2: Application by impregnation (Laboratory method) EN 46-1, Wood preservatives - Determination of the preventive action against Hylotrupes bajulus (Linnaeus) Part 1: Larvicidial effect (Laboratory method) EN 46-2, Wood preservatives - Determination of the preventive action against Hylotrupes bajulus (Linnaeus) Part 2: Ovicidal effect (laboratory method) EN 47, Wood preservatives - Determination of the toxic values against larvae of Hylotrupes bajulus (Linnaeus) - (Laboratory method) EN 49-1, Wood preservatives - Determination of the protective effectiveness against Anobium punctatum (De Geer) by egg-laying and larval survival - Part 1: Application by surface treatment (Laboratory method) EN 49-2, Wood preservatives - Determination of the protective effectiveness against Anobium punctatum (De Geer) by egg-laying and larval survival - Part 2: Application by impregnation (Laboratory method) EN 73, Wood preservatives - Accelerated ageing tests of treated wood prior to biological testing - Evaporative ageing procedure EN 84, Wood preservatives - Accelerated ageing of treated wood prior to biological testing - Leaching procedure EN 113, Wood preservatives - Test method for determining the protective effectiveness against wood destroying basidiomycetes - Determination of the toxic values EN 117, Wood preservatives - Determination of toxic values against Reticulitermes species (European termites) (Laboratory method) EN 118:2005, Wood preservatives - Determination of preventive action against Reticulitermes species (European termites) (Laboratory method) EN 152, Wood preservatives - Determination of the protective effectiveness of a preservative treatment against blue stain in wood in service - Laboratory method EN 252, Field test method for determining the relative protective effectiveness of a wood preservative in ground contact EN 275, Wood preservatives - Determination of the protective effectiveness against marine borers EN 330, Wood preservatives - Field test method for determining the relative protective effectiveness of a wood preservative for use under a coating and exposed out of ground contact: L-joint method EN 335-1, Durability of wood and wood-based products — Definition of use classes — Part 1: General EN 351-1, Durability of wood and wood-based products - Preservative-treated solid wood - Part 1: Classification of preservative penetration and retention EN 599-2, Durability of wood and wood-based products - Performance of preventive wood preservatives as determined by biological tests - Part 2: Classification and labelling ENV 807:2001, Wood preservatives - Determination of the effectiveness against soft rotting micro-fungi and other soil inhabiting micro-organisms CEN/TS 839, Wood preservatives - Determination of the protective effectiveness against wood destroying basidiomycetes - Application by surface treatment BS EN 599-1:2009+A1:2013 EN 599-1:2009+A1:2013 (E) EN 1001-2:2005, Durability of wood and wood based products - Terminology - Part 2: Vocabulary 3.1 Terms, definitions, abbreviations and symbols Terms and definitions For the purposes of this document, the terms and definitions given in EN 1001-2:2005 and the following apply 3.1.1 active ingredient(s) a.i individual chemical compound or compounds included in a wood preservative to give it specific activity against biological agents of deterioration [EN 1001-2:2005, 4.01] 3.1.2 analytical zone a.z part of the treated wood which is analysed for assessing the retention requirement (r.r.) NOTE The analytical zone is taken from the lateral surfaces of the treated wood The depth to which sampling is required will depend on the species of wood being analysed and the treatment level concerned [EN 1001-2:2005, 4.03] 3.1.3 biological reference value b.r.v amount in grams per square metre or kilograms per cubic metre of a wood preservative (as product) found to be effective in test in preventing attack by the particular biological agent being tested [EN 1001-2:2005, 4.06] 3.1.4 critical value c.v value equivalent to the highest b.r.v (in grams per square metre or kilograms per cubic metre) obtained from all the biological tests carried out in accordance with this part of EN 599 for any given use class [EN 1001-2:2005, 4.18] 3.1.5 co-formulant any ingredient (other than an active ingredient) in a formulated wood preservative product [EN 1001-2:2005, 4.14] 3.1.6 manufacturer's proposed recommended loading m.r.l amount of product in the test specimen corresponding to the mean loading which the manufacturer recommends as necessary and achievable in practice in the analytical zone(s) [EN 1001-2:2005, 4.50] BS EN 599-1:2009+A1:2013 EN 599-1:2009+A1:2013 (E) 3.1.7 maximum application limit m.a.l maximum amount in grams per square metre or kilograms per cubic metre of the product permitted for application to the wood specimens in a particular biological test [EN 1001-2:2005, 4.51] 3.1.8 mid-toxic value m.t.v arithmetic mean of the upper and lower toxic values as defined in the relevant European Standard biological test [EN 1001-2:2005, 4.52] 3.1.9 nominal effective retention n.e.r retention of test product calculated to give the efficacy specified in ENV 807 equivalent to the relevant target retention of the reference preservative [EN 1001-2:2005, 4.55] 3.1.10 penetrating treatment process process which includes features or procedures intended to overcome the natural resistance of wood to penetration by a wood preservative in its ready for use form NOTE Such processes include, for example, currently practised technologies of diffusion treatments, double-vacuum and the vacuum/pressure process [EN 1001-2:2005, 4.58] 3.1.11 product formulated wood preservative in the form as supplied for sale by the manufacturer [EN 1001-2:2005, 1.32] 3.1.12 retention requirement r.r loading of product that is required in the analytical zone NOTE The retention requirement is expressed in grams of product per square metre for superficial application processes and kilograms of product per cubic metre for penetrating treatment processes It is derived from the critical value in different ways depending upon the particular test involved [EN 1001-2:2005, 4.73] 3.1.13 superficial application process process which does not include particular features or procedures intended to overcome the natural resistance of wood to penetration of a wood preservative in its ready for use form NOTE Such processes include for example brush and spray techniques and short-time immersion (dipping) processes in which wood normally has only a few minutes contact with the preservative BS EN 599-1:2009+A1:2013 EN 599-1:2009+A1:2013 (E) h) replacing a co-formulant providing the additive constitutes less than % of the total formulation and providing the physical properties are not affected (A.2.5) A.2.3 In the case of water-soluble preservatives no new biological testing is required for: a) changes involving substitution of any co-formulant by one which is chemically equivalent, from another supplier; b) changes involving the addition or deletion of a soluble dyestuff; c) for products in their ready for use form containing 10 % (m/m) or less of solids containing resins and/or water repellents, relative changes in content of these constituent(s) of no more than ± 20 % (m/m) and for products containing more than 10 % (m/m) solids, relative changes of no more than ± 10 % (m/m) of these constituents; d) for inorganic active ingredients, changes in the non-biologically active portion of the ingredients not resulting in a change in the ratio, total content or nature of the active chemical elements; e) changes in pigments to an equal or lower pigment content of the product; f) changing or adding a water miscible co-solvent (distillation range as in A.2.2b) up to % of the total formulation; g) adding and/or replacing a co-formulant providing the additive constitutes less than % of the total formulation and providing the physical properties are not affected (A.2.5) A.2.4 In the case of emulsion products no new biological testing is required for: a) changes involving substitution of any co-formulant by one which is chemically equivalent from another supplier; b) replacing or adding a co-solvent up to % of the total formulation providing the physical stability does not change (A.2.5); c) adding and/or replacing a co-formulant providing the additive constitutes less than % of the total formulation and physical properties are not affected (A.2.5) A.2.5 Additionally in every case: It should be confirmed: a) that the penetration into wood is not adversely affected; b) that the stability of the product is not adversely affected; c) by chemical analysis, that the above changes not alter the content of the active ingredients after storage at 40 °C for 28 days A.3 Requirement for minimum new biological testing A.3.1 Products having any or all of the variations as given in A.3.2 from a 'type-product' for which test data in accordance with the requirements of Table to Table of this part of EN 599 exist already, are considered only to require re-testing using the test that gave the highest b.r.v for the original type-product In the case of EN 113, the test needs only be repeated using the fungus which gave the highest m.t.v for the original product in Scots pine sapwood only In the case of ENV 807, only the combination of wood type which gave the highest b.r.v for the original product needs be repeated 28 BS EN 599-1:2009+A1:2013 EN 599-1:2009+A1:2013 (E) In every case, where minimum new biological tests are required, the original type-product should be re-tested simultaneously for comparison A.3.2 minimum new biological tests are required following a) for products containing both fungicide(s) and insecticide(s), either changes involving deletion of an insecticide from a product tested against decay fungi (in accordance with this part of EN 599) or involving deletion of a fungicide from a product tested against insects (in accordance with this part of EN 599) unless data exist which confirm no effect of the removal on the efficacy of the remaining biocides (see Figure A.1); b) changes involving addition of an active ingredient intended as insecticide (tested in accordance with this part of EN 599) to a product tested against decay fungi, or involving addition of an active ingredient intended as active against decay fungi (tested in accordance with this part of EN 599) to a product tested against insects (see Figure A.2); c) for products containing both fungicide(s) and insecticide(s) (separately tested in accordance with this part of EN 599), changes involving substitution of the insecticide(s) by another insecticide(s) (tested in accordance with this Part of EN 599) (see Figure A.3) A.3.2.1 In the case of organic solvent based products and water-soluble products, minimum new biological tests are required following: a) changes involving the incorporation of a water-repellent additive to a formulation; b) any other changes in the content or nature of co-formulants not exempted by A.2.2 or A.2.3; A.3.2.2 In the case of emulsion products, minimum new biological tests are required following: any other changes in the content or nature of co-formulants not exempted by A.2.4 above 29 BS EN 599-1:2009+A1:2013 EN 599-1:2009+A1:2013 (E) a) Re-testing necessary? b) against fungi: no providing no claims of fungicidal efficacy are made against insects: yes unless data exist which confirm that the removal of the fungicide (F)a does not affect the insecticidal efficacy against fungi: yes unless data exist which confirm that the removal of the insecticide (I)a does not affect the fungicidal efficacy against insects: no providing no claims of insecticidal efficacy are made Key a) original formulation b) derived formulation F fungicide I insecticide Figure A.1 — Requirement for minimum new biological testing in case of the removal of the fungicides or insecticides from a product a) Re-testing necessary? b) against fungi: no providing data exist which confirm that Fa has no effect on the fungicidal efficacy of Ia against insects: yes against fungi: yes against insects: no providing data exist which confirm that Ia has no effect on the fungicidal efficacy of Fa Key a) original formulation b) derived formulation F fungicide I insecticide Figure A.2 — Requirement for minimum new biological testing in case of the addition of fungicides or insecticides to a product 30 BS EN 599-1:2009+A1:2013 EN 599-1:2009+A1:2013 (E) a) Re-testing necessary? b) against fungi: yes against insects: no providing data exist which confirm that Fa has no strengthening effect on the insecticide Ia and Fb has no weakening effect on the insecticide Ia against fungi: no providing data exist which confirm that Ia has no strengthening effect on the fungicide Fa and Ib has no weakening effect on the fungicide Fa against insects: yes Key a) original formulation b) derived formulation F fungicide I insecticide Figure A.3 — Requirement for minimum new biological testing in case of the substitution of fungicides or insecticides from a product A.3.3 The new biological tests may be carried out on unaged test specimens except in respect of: a) products in which the change(s) described in A.3.2.1 involve(s) reduction in content or deletion of any coformulant; or b) products in which any changes are as described in A.3.2.2 When they should be carried out on test specimens appropriately aged in accordance with the provisions of the relevant Table to Table of this part of EN 599 using a limited range of concentrations which should include those from which the original toxic values of the 'type product' were derived In the new biological test(s), the biological reference values of the varied products against the relevant test organism(s) should be equal to or lower than those of the original product tested simultaneously for comparison Providing this is the case, the critical value for the varied product should be regarded as the same as that for the original product If this is not the case, A.4 applies NOTE In the re-test an increase in b.r.v of 10 % of the value for the original product is admissible to accommodate variations in uptake of fluid by the test specimens A.3.4 Additionally, in every case: It should be confirmed: a) that the penetration into wood is not adversely affected; b) that the stability of the product is not adversely affected; 31 BS EN 599-1:2009+A1:2013 EN 599-1:2009+A1:2013 (E) c) by chemical analysis, that the above changes not alter the content of the active ingredient(s) after storage at 40 °C for weeks A.4 Requirement for full new biological testing Products having any or all of the following variations from a 'type-product' for which test data in accordance with the requirements of Table to Table of this part of EN 599 exist already, are considered to require full relevant re-testing in accordance with Table to Table of this part of EN 599: a) any change(s) in the content of the active ingredients greater than that given in B.1 (b) of this part of EN 599 or in the nature of the active ingredient(s), with the exception of the provisions of A.2.3.(d) and A.3.2.(a), (b) and (c); b) any change(s) where the limited biological testing as described in A.3 shows a reduction in toxicity to the relevant test organism(s); c) all other changes not covered in A.2 or A.3 above 32 BS EN 599-1:2009+A1:2013 EN 599-1:2009+A1:2013 (E) Annex B (informative) Production control B.1 Procedure The manufacturer may exercise a permanent internal control of production using the principles given in EN ISO 9000 which shall include: a) b) taking a sample from each batch of production in conjunction with EN 212 which shall be: 1) identified permanently and legibly on a label affixed to the sample container giving the product name and/or code number, the batch number and the date of sampling; 2) representative of the batch from which it was taken; 3) taken by a person trained in these sampling procedures; analysing each sample for the active ingredient(s) – each active ingredient may vary from the nominal percentage (in mass) stated in the declaration of composition A tolerance of ± 10 % is widely used by manufacturers However, alternative tolerances may be used depending on the active ingredient, its concentration and the composition of the formulation An example follows.: 1) quantification of the estimate for a content of active ingredient < 0,1 %; 2) ± 30 % relative to the nominal for a content of active ingredient > 0,1 % m/m and ≤ 0,5 %; 3) ± 20 % relative to the nominal for a content of active ingredient > 0,5 % m/m and ≤ %; 4) ± 15 % relative to the nominal for a content of active ingredient > 1,0 % m/m and ≤ 2,5 %; 5) ± 10,0 % relative to the nominal for a content of active ingredient > 2,5 % m/m and ≤ 10,0 % m/m; 6) ± 6,0 % relative to the nominal for a content of active ingredient > 10,0 % m/m and ≤ 25,0 % m/m; 7) ± 5,0 % relative to the nominal for a content of active ingredient > 25,0 % m/m and ≤ 50,0 % m/m; 8) ± 2,5 % relative to the nominal for a content of active ingredient > 50,0 % m/m and ≤ 100,0 % m/m; c) checking at intervals of between five months and seven months that the other ingredients in the preservative product conform with the declaration of composition: 1) other ingredients of the preservative product may vary by up to 10 % relative to the nominal percentage declared on the declaration of composition 33 BS EN 599-1:2009+A1:2013 EN 599-1:2009+A1:2013 (E) B.2 Records The manufacturer shall record the results of production control (manufacturer's record) These records shall include: a) unique name and/or code number of the preservative product which shall include the name or other designation used on the declaration of composition; b) date of sampling; c) test methods applied; d) the test result; e) date of tests; f) name of the person responsible for quality 34 BS EN 599-1:2009+A1:2013 EN 599-1:2009+A1:2013 (E) Annex C (informative) Methods of application The efficacy of a wood preservative product depends in part on the method used to apply it Wood preservative products are formulated to suit specific application processes, and methods used to test their efficacy and suitability for use have to take this into account The biological methods of test in this part of EN 599 in general take into account the method of application likely to be used in practice and specifically how the preservative is to be applied for testing purposes The range of methods of application available in practice is very wide and the European Standard biological laboratory tests cannot accommodate all of them specifically For the purposes of this part of EN 599, the wood preservative products are classified according to their intended use by superficial application processes only or by penetrating treatment processes only or for use by both types of process 35 BS EN 599-1:2009+A1:2013 EN 599-1:2009+A1:2013 (E) Annex D (informative) Type of wood The classification of the wood preservative product indicates whether its use is restricted to softwoods only (see EN 599-2) Softwood and hardwood species of timber react very differently to the degree and type of attack by different biological agents Similarly, the penetration and distribution of wood preservative products in softwoods and hardwood may vary A product can be less effective in hardwoods than in softwoods against wood-attacking fungi If efficacy in hardwoods is specifically required, data from tests on the hardwood species (beech) are necessary 36 BS EN 599-1:2009+A1:2013 EN 599-1:2009+A1:2013 (E) Annex E (informative) Artificial ageing procedures Artificial ageing procedures are required prior to biological testing, to demonstrate the resistance of wood preservative products to evaporation (see EN 73), water leaching (see EN 84) and exposure to the weather, including sunlight; there are no European Standard methods of test appropriate to weathering hazard although EN 152 specifies a period of natural weathering prior to biological testing, or, alternatively, artificial weathering by UV light. Artificial ageing procedures are specified in the testing and efficacy requirements where exposure to leaching and/or evaporative ageing can be predicted as a regular, normal and unavoidable feature of service exposure conditions for a given use class Some forms of exposure such as wetting by rain in use classes and can be important but arise only as a result of temporary or accidental factors No appropriate European standard procedure yet exists relevant to this type of exposure Equally, some wood preservative products applied to timber in use class will be protected from leaching by paints, other coatings or some other systems applied before exposure of the treated wood to wetting For such products, resistance to leaching in accordance with EN 84 is not mandatory and tests in accordance with EN 330 and EN 113 after EN 73 may be conducted and the relevant efficacy requirements complied with If tests following both EN 73 and EN 84 procedures are required, they are carried out individually and on separate sets of treated specimens before the respective individual biological tests 37 BS EN 599-1:2009+A1:2013 EN 599-1:2009+A1:2013 (E) Annex F (informative) Significance of specific biological agents The risk of attack by any particular biological agent and therefore its practical significance varies according to the service conditions as represented by the use classes defined in EN 335-1 The risk depends upon many factors but especially upon the environmental conditions (mainly of moisture and temperature) and upon the geographical location and timber species In particular, the incidence of the different beetle species is highly variable and they may be infrequent but serious or frequent and of little consequence In particular, termites exist only in certain European regions but cause serious damage where they occur Damage in the marine environment varies considerably from northern to Mediterranean waters mainly because of variations in the incidence of the particular species of borers which occur Fungi causing blue stain in service may be of considerable practical and economic significance for particular commodities in a given use class but only if appearance is important They may be of no significance for other commodities in the same use class For the above reasons the significance to be attached to particular biological agents varies and it is not necessary for wood preservative products to be active against all the agents that can occur in a given use class unless such activity is specifically claimed or needed Indeed broad spectrum activity is undesirable if it results in more biocide being used than is necessary for the purpose 38 BS EN 599-1:2009+A1:2013 EN 599-1:2009+A1:2013 (E) Annex G (informative) Minimum efficacy requirements For the purposes of this part of EN 599 the minimum efficacy required of a wood preservative product in each of the biological tests is specified in terms of its biological reference value (b.r.v.) in that test This value is either equivalent to, or derived from, the toxic values or other efficacy criteria specified in any particular European standard method of test The criteria for deriving the b.r.v for the product under test are specific to each biological test and are given in Table to Table The highest b.r.v recorded for the preservative in any of the required biological tests is designated the critical value (c.v.) The c.v is used in EN 351-1 to define the retention requirement which is the amount of the product which is required to be present in the analytical zone of treated timber 39 BS EN 599-1:2009+A1:2013 EN 599-1:2009+A1:2013 (E) Annex H (normative) Validity of test results from former standards after their revision For products which have been used successfully in practice for at least 10 years no limitations apply to the validity of the test results after revision of former test European Standards The “successful use” has to be proved by the applicant NOTE “Successfully used” means that the respective product has been applied to components in practice and that during the service live of the components no failure due to insufficient efficacy of the wood preservative in question became obvious For products which have been successfully tested in field tests no limitations apply to the validity of the test results after revision of a particular laboratory test European Standard For any other product national standards bodies or authorities nominated by them may decide, if and how variations in the test procedure can influence the test result, with the two options: a) minor influence resulting in no limitations; b) marked influence resulting in the demand for limited or full re-testing, depending on the extent to which results can differ and how this will be of importance for the judgement on the efficacy of the preservative or its behaviour under the revised test conditions Furthermore no re-testing is necessary if in the course of establishing the new European Standard, ring-tests in various laboratories have proved, that the revised/new test procedure provides results being equivalent to those resulting from the former test procedure If existing European Standards are substituted by new test procedures a transition time shall be mentioned in the new European Standard 40 BS EN 599-1:2009+A1:2013 EN 599-1:2009+A1:2013 (E) Bibliography [1] EN 335-2, Durability of wood and wood-based products - Definition of use classes - Part 2: Application to solid wood [2] EN 350-1, Durability of wood and wood-based products - Natural durability of solid wood - Part 1: Guide to the principles of testing and classification of the natural durability of wood [3] EN 350-2, Durability of wood and wood-based products - Natural durability of solid wood - Part 2: Guide to natural durability and treatability of selected wood species of importance in Europe [4] EN 460, Durability of wood and wood-based products - Natural durability of solid wood - Guide to the durability requirements for wood to be used in use classes [5] EN ISO/IEC 17025, General requirements for the competence of testing and calibration laboratories (ISO/IEC 17025:2005) [6] EN ISO 9000, Quality management systems - Fundamentals and vocabulary (ISO 9000:2005) 41 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW British Standards Institution (BSI) BSI is the national body responsible for preparing British Standards and other standards-related publications, information and services BSI is incorporated by Royal Charter British Standards and other standardization products are published by BSI Standards Limited About us Revisions We bring together business, industry, government, consumers, innovators and others to shape their combined experience and expertise into standards -based solutions Our British Standards and other publications are updated by amendment or revision The knowledge embodied in our standards has been carefully assembled in a dependable format and refined through our open consultation process Organizations of all sizes and across all sectors choose standards to help them achieve their goals Information on standards We can provide you with the knowledge that your organization needs to succeed Find out more about British Standards by visiting our website at bsigroup.com/standards or contacting our Customer Services team or Knowledge Centre Buying standards You can buy and download PDF versions of BSI publications, including British and adopted European and international standards, through our website at bsigroup.com/shop, where hard copies can also be purchased If you need international and foreign standards from other Standards Development Organizations, hard copies can be ordered from our Customer Services team Subscriptions Our range of subscription services are designed to make using standards easier for you For further information on our subscription products go to bsigroup.com/subscriptions With British Standards Online (BSOL) you’ll have instant access to over 55,000 British and adopted European and international standards from your desktop It’s available 24/7 and is refreshed daily so you’ll always be up to date You can keep in touch with standards developments and receive substantial discounts on the purchase price of standards, both in single copy and subscription format, by becoming a BSI Subscribing Member PLUS is an updating service exclusive to BSI Subscribing Members You will automatically receive the latest hard copy of your standards when they’re revised or replaced To find out more about becoming a BSI Subscribing Member and the benefits of membership, please visit bsigroup.com/shop With a Multi-User Network Licence (MUNL) you are able to host standards publications on your intranet Licences can cover as few or as many users as you wish With updates supplied as soon as they’re available, you can be sure your documentation is current For further information, email bsmusales@bsigroup.com BSI Group Headquarters 389 Chiswick High Road London W4 4AL UK We continually improve the quality of our products and services to benefit your business If you find an inaccuracy or ambiguity within a British Standard or other BSI publication please inform the Knowledge Centre Copyright All the data, software and documentation set out in all British Standards and other BSI publications are the property of and copyrighted by BSI, or some person or entity that owns copyright in the information used (such as the international standardization bodies) and has formally licensed such information to BSI for commercial publication and use Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means – electronic, photocopying, recording or otherwise – without prior written permission from BSI Details and advice can be obtained from the Copyright & Licensing Department Useful Contacts: Customer Services Tel: +44 845 086 9001 Email (orders): orders@bsigroup.com Email (enquiries): cservices@bsigroup.com Subscriptions Tel: +44 845 086 9001 Email: subscriptions@bsigroup.com Knowledge Centre Tel: +44 20 8996 7004 Email: knowledgecentre@bsigroup.com Copyright & Licensing Tel: +44 20 8996 7070 Email: copyright@bsigroup.com